Stylus mounting



May 18 1926.

WITNESS:

L. BAXTER STYLUS MOUNTING Filed June 10 1924 L. Baxter sway lNVENTdR 'www ATTORNEY Patented May 18, 1926.

UNITE STATE LEON BAXTER, OF BROOKLYN, NEW YORK.

STYLUS MOUNTING.

Application filed June 10, 1924. Serial No. 719,167.

My present invention has reference to a mounting for the stylus bar of the sound box for phonog 'aphs or similar talking machines.

An object is to produce a stylus bar from a single piece of suitable metal connected to the diaphragm of the sound box of a talking machine in such manner as to prevent rattling or pressure on the diaphragm either up, down or sideways.

To the attainment of the foregoing broadly stated objects and others which will. appear as the nature of the invention is better understood, reference is to be had to the drawings which accompany and which form part of this application.

In the drawings Figure l is a view showing the improvement applied.

Figure 2 is a sectional view approximately on the line 2-2 of Figure 1.

Figure 3 is a sectional View approximately on the line 33 of Figure 1.

Figure l is a perspective view of the stylus bar.

The stylus bar constituting my improve ment is preferably formed from a single piece of metal, although the arm 1 thereof may be welded or otherwise secured to the outer end, which I will term the head 2. The outer and reduced end of the arm 1 is threaded and is bent right-angularly with respect to the bar proper and is passed centrally through the diaphragm 3 of the tone box 4:.

As the threaded ends of the stylus bar are not always bent at the same angle and are not always of the same length, I have found that the usual conical openings in the opposed faces on the inner enlargement 5, of what I have termed the stylus bar head 2, will not properly register with the conical ends of the screws 6 which are passed through ears 7 in the frame of the sound box. To overcon'ie this, I do away with the 4 conical notches or depressions. and form the opposite sides of the said enlargement 5 with substantially ii-shaped slits 8 that extend the entire length of the said enlargement. By such arrangement, it will be noted that the conical ends of the screws may be received in any part of the slits and the stylus bar can be properly attached to the sound box regardless of the length of the arm thereon. For the sake of illustration, the V-shaped slits 8 have been exaggerated in the drawings. The screws 6 are of a harder metal than the arm 1, and the conical ends of the said screws are guided in the V-shaped slits, and embedded in the metal provided by the walls thereof when the said screws are screwed home. By this arrange ment, the stylus bar may be associated with the sound box in an easier, quicker and more accurate manner than is obtained by the present well known constructions and the cutting of the arm at any part thereof is effectively obviated.

Having described clain'i The combination with a sound box carrying a diaphragm and having its frame provided with spaced outstanding ears through which are screwed bolts having cone-shaped ends, of a stylus bar constructed of a single piece of metal having a needle carrying head provided with an inner enlargen'ient which is slitted longitudinally on its opposite sides to receive the conical ends of the screws therethrough, to permit of the said conical ends of the screws embedding themselves in the walls provided by the slits and affording a pivotal support for the stylus bar.

In testimony whereof I aflix my signature.

the invention, I

LEON BAXTER. 

